An Evaluation of the Accuracy and Precision of Ceramic Orthodontic Bracket Slot Dimensions Utilizing Micro-Computed Tomography (Micro-CT)

This study’s aim is to determine the accuracy and precision of the bracket slot height in MBT 0.022″ ceramic brackets. Five brackets from 11 different systems (n = 55) were scanned using micro-computed tomography (micro-CT). The slot height was measured at the face (external) and base (internal) of...

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Main Authors: Antonio Garrett, Maryam A. Alghilan, Simon Ash, Mohammed Awawdeh, Parmjit Singh
Format: Article
Language:English
Published: MDPI AG 2023-07-01
Series:Tomography
Subjects:
Online Access:https://www.mdpi.com/2379-139X/9/4/109
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author Antonio Garrett
Maryam A. Alghilan
Simon Ash
Mohammed Awawdeh
Parmjit Singh
author_facet Antonio Garrett
Maryam A. Alghilan
Simon Ash
Mohammed Awawdeh
Parmjit Singh
author_sort Antonio Garrett
collection DOAJ
description This study’s aim is to determine the accuracy and precision of the bracket slot height in MBT 0.022″ ceramic brackets. Five brackets from 11 different systems (n = 55) were scanned using micro-computed tomography (micro-CT). The slot height was measured at the face (external) and base (internal) of the slot. Data were analyzed using a One-Sample <i>t</i>-Test, and a Paired <i>t</i>-Test. The lowest external height was seen in OrthoCare Purity<sup>®</sup> at 0.02264″ (2.9%), and the greatest in TOC Ghost Advanced<sup>®</sup> at 0.02736″ (24.4%). The lowest internal height was seen in Forestadent Glam<sup>®</sup> at 0.02020″ (−8.2%), and the greatest in TOC Ghost Advanced<sup>®</sup> at 0.2547″ (15.8%). OrthoCare Purity<sup>®</sup> measurements corresponded most closely with the expected measurements. TP InVu<sup>®</sup> was found to be the most precise bracket for external height (range = 0.00043″) and American Orthodontics 20/40<sup>®</sup> for internal height (range = 0.00028″). In assessing slot geometry, all brackets demonstrated a higher mean external slot height compared to the internal measurements at the base of the bracket. Orthodontic bracket slots are larger than expected and slot parallelism was not observed in any bracket brand tested. Similarly, slot dimensions are imprecise where two ‘identical’ brackets have different slot sizes. The clinician should, therefore, assume that play is most likely higher than expected.
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spelling doaj.art-3edf5b9858514983b20c8a9b488019122023-11-19T03:13:47ZengMDPI AGTomography2379-13812379-139X2023-07-01941369138010.3390/tomography9040109An Evaluation of the Accuracy and Precision of Ceramic Orthodontic Bracket Slot Dimensions Utilizing Micro-Computed Tomography (Micro-CT)Antonio Garrett0Maryam A. Alghilan1Simon Ash2Mohammed Awawdeh3Parmjit Singh4Faculty of Dentistry, BPP University, 32-34 Colmore Circus Queensway, Birmingham B4 6BN, UKRestorative and Prosthetic Dental Sciences Department, College of Dentistry, King Saud bin Abdulaziz University for Health Sciences (KSAU-HS), Riyadh 11426, Saudi ArabiaCollege of Medicine & Dentistry, Ulster University, 32-34 Colmore Circus, Birmingham B4 6BN, UKKing Abdullah International Medical Research Center, Ministry of National Guard Health Affairs, Riyadh 11481, Saudi ArabiaCollege of Medicine & Dentistry, Ulster University, 32-34 Colmore Circus, Birmingham B4 6BN, UKThis study’s aim is to determine the accuracy and precision of the bracket slot height in MBT 0.022″ ceramic brackets. Five brackets from 11 different systems (n = 55) were scanned using micro-computed tomography (micro-CT). The slot height was measured at the face (external) and base (internal) of the slot. Data were analyzed using a One-Sample <i>t</i>-Test, and a Paired <i>t</i>-Test. The lowest external height was seen in OrthoCare Purity<sup>®</sup> at 0.02264″ (2.9%), and the greatest in TOC Ghost Advanced<sup>®</sup> at 0.02736″ (24.4%). The lowest internal height was seen in Forestadent Glam<sup>®</sup> at 0.02020″ (−8.2%), and the greatest in TOC Ghost Advanced<sup>®</sup> at 0.2547″ (15.8%). OrthoCare Purity<sup>®</sup> measurements corresponded most closely with the expected measurements. TP InVu<sup>®</sup> was found to be the most precise bracket for external height (range = 0.00043″) and American Orthodontics 20/40<sup>®</sup> for internal height (range = 0.00028″). In assessing slot geometry, all brackets demonstrated a higher mean external slot height compared to the internal measurements at the base of the bracket. Orthodontic bracket slots are larger than expected and slot parallelism was not observed in any bracket brand tested. Similarly, slot dimensions are imprecise where two ‘identical’ brackets have different slot sizes. The clinician should, therefore, assume that play is most likely higher than expected.https://www.mdpi.com/2379-139X/9/4/109micro-CTaccuracybracketsorthodonticstorqueceramics
spellingShingle Antonio Garrett
Maryam A. Alghilan
Simon Ash
Mohammed Awawdeh
Parmjit Singh
An Evaluation of the Accuracy and Precision of Ceramic Orthodontic Bracket Slot Dimensions Utilizing Micro-Computed Tomography (Micro-CT)
Tomography
micro-CT
accuracy
brackets
orthodontics
torque
ceramics
title An Evaluation of the Accuracy and Precision of Ceramic Orthodontic Bracket Slot Dimensions Utilizing Micro-Computed Tomography (Micro-CT)
title_full An Evaluation of the Accuracy and Precision of Ceramic Orthodontic Bracket Slot Dimensions Utilizing Micro-Computed Tomography (Micro-CT)
title_fullStr An Evaluation of the Accuracy and Precision of Ceramic Orthodontic Bracket Slot Dimensions Utilizing Micro-Computed Tomography (Micro-CT)
title_full_unstemmed An Evaluation of the Accuracy and Precision of Ceramic Orthodontic Bracket Slot Dimensions Utilizing Micro-Computed Tomography (Micro-CT)
title_short An Evaluation of the Accuracy and Precision of Ceramic Orthodontic Bracket Slot Dimensions Utilizing Micro-Computed Tomography (Micro-CT)
title_sort evaluation of the accuracy and precision of ceramic orthodontic bracket slot dimensions utilizing micro computed tomography micro ct
topic micro-CT
accuracy
brackets
orthodontics
torque
ceramics
url https://www.mdpi.com/2379-139X/9/4/109
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